Bill Mitchum is paid a monthly salary of $7,200.00 What is his Social Security tax withholding for January ? What is his Medicare tax withholding for January ?​

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Using elimination, what is -4x+2y=-12 4x+8y=-24

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4